1CPT

CRYSTAL STRUCTURE AND REFINEMENT OF CYTOCHROME P450-TERP AT 2.3 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Work: 0.189 
  • R-Value Observed: 0.189 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure and refinement of cytochrome P450terp at 2.3 A resolution.

Hasemann, C.A.Ravichandran, K.G.Peterson, J.A.Deisenhofer, J.

(1994) J Mol Biol 236: 1169-1185

  • DOI: 10.1016/0022-2836(94)90019-1
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Cytochrome P450terp is a class I (mitochondrial/bacterial) P450 that catalyzes the hydroxylation of alpha-terpineol as part of the catabolic assimilation of this compound by a pseudomonad species. Crystals grown from the purified protein have the sym ...

    Cytochrome P450terp is a class I (mitochondrial/bacterial) P450 that catalyzes the hydroxylation of alpha-terpineol as part of the catabolic assimilation of this compound by a pseudomonad species. Crystals grown from the purified protein have the symmetry of space group P6(1)22, and cell dimensions a = b = 69.4 A, c = 456.6 A, alpha = beta = 90 degrees, gamma = 120 degrees. Diffraction data were collected at the Cornell High Energy Synchrotron Source, and the structure of P450terp was solved by a combination of molecular replacement and multiple isomorphous replacement techniques. A model of P450terp was built and refined against native data, to an R-factor of 18.9% for data with I > or = sigma(I) between 6.0 A and 2.3 A resolution. This model contains 412 of the 428 P450terp amino acid residues; the loop between helices F and G is disordered in the crystal. While the overall fold of P450terp is very similar to that of P450cam, only three-quarters of the C alpha positions can be superimposed, to a root-mean-square deviation of only 1.87 A. The mode of substrate binding by P450terp can be predicted, and probable substrate contact residues identified. The heme environment and side-chain positions in the adjacent I-helix suggest possible modes of proton delivery in the catalytic cycle of the enzyme.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Diffraction Analysis of P450-Terp and the Hemoprotein Domain of P450-Bm-3, Enzymes Belonging to Two Distinct Classes of the Cytochrome P450 Superfamily
      Boddupalli, S.S., Hasemann, C.A., Ravichandran, K.G., Lu, J.-Y., Goldsmith, E.J., Deisenhofer, J., Peterson, J.A.
      (1992) Proc Natl Acad Sci U S A 89: 5567
    • Cytochrome P450-Terp: Isolation and Purification of the Protein and Cloning and Sequencing of its Operon
      Peterson, J.A., Lu, J.-Y., Geisselsoder, J., Graham-Lorence, S., Carmona, C., Witney, F., Lorence, M.C.
      (1992) J Biol Chem 267: 14193

    Organizational Affiliation

    Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas 75235-9050.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CYTOCHROME P450-TERP
A
428Pseudomonas sp.Mutation(s): 0 
Gene Names: cyp108terPC
EC: 1.14
Find proteins for P33006 (Pseudomonas sp)
Go to UniProtKB:  P33006
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download CCD File 
A
PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Work: 0.189 
  • R-Value Observed: 0.189 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.44α = 90
b = 69.44β = 90
c = 456.55γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance